MINOR: mux-h1: Don't emit C-L and T-E headers for 204 and 1xx responses

204 and 1xx responses must not have any payload. Now, the H1 mux takes care
of that in last resort. But they also must not have any C-L or T-E
headers. Thus, if found on the sending path, these headers are ignored.

diff --git a/src/mux_h1.c b/src/mux_h1.c
index 7b99f1a79c14de45e48496b95ed9aa3db1ef0882..266a2e70d75085f8b2eb7a62f3ff291b34016c0c 100644 (file)
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -1828,9 +1828,14 @@ static size_t h1_process_output(struct h1c *h1c, struct buffer *buf, size_t coun
                                if (*(n.ptr) == ':')
                                        goto skip_hdr;
 
-                               if (isteq(n, ist("transfer-encoding")))
+                               if (isteq(n, ist("transfer-encoding"))) {
+                                       if ((h1m->flags & H1_MF_RESP) && (h1s->status < 200 || h1s->status == 204))
+                                               goto skip_hdr;
                                        h1_parse_xfer_enc_header(h1m, v);
+                               }
                                else if (isteq(n, ist("content-length"))) {
+                                       if ((h1m->flags & H1_MF_RESP) && (h1s->status < 200 || h1s->status == 204))
+                                               goto skip_hdr;
                                        /* Only skip C-L header with invalid value. */
                                        if (h1_parse_cont_len_header(h1m, &v) < 0)
                                                goto skip_hdr;